Exploring the semiconductor properties of a charge transfer cocrystal of 1-aminopyrene and TCNQ. Issue 4 (23rd December 2019)

• Record Type: Journal Article
• Authors: Mandal, Arkalekha; Choudhury, Anwesha; Kumar, Rahul; Iyer, Parameswar Krishnan; Mal, Prasenjit
• Is Part Of: CrystEngComm. Volume 22:Issue 4(2020)
• Page Start: 720
• Page End: 727
• Publication Date: 2019-12-23
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c9ce01507h
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : The n-type semiconductor nature of a 1 : 1 mixed stack charge transfer cocrystal of 1-aminopyrene and TCNQ is explored. Abstract : A binary (1 : 1) charge transfer cocrystal composed of 1-aminopyrene and 7, 7′, 8, 8′-tetracyanoquinodimethane (TCNQ) is expected to possess potentially intriguing n-type semiconductor properties. The cocrystal was characterized by single crystal analysis, electrical conductivity measurements and spectroscopic methods including EPR, IR and UV-vis in the solid state. The supramolecular features and origin of semiconductor nature of the cocrystal were explored by theoretical studies with a special emphasis given on the effect of amino substitution. The estimated degree of charge transfer (−0.24 e ) in the cocrystal is predictive of its substantial transport ability for electrons under ambient conditions.